/Engine/Source/Editor/UnrealEd/Public/Editor.h
Delegate type fired when new assets are being (re-)imported. Params: UFactory* InFactory, UClass* InClass, UObject* InParent, constFName& Name, const TCHAR* Type
typedef TMulticastDelegate_FiveParams< void, [UFactory](API\Editor\UnrealEd\Factories\UFactory) *, [UClass](API\Runtime\CoreUObject\UObject\UClass) *, [UObject](API\Runtime\CoreUObject\UObject\UObject) *, const [FName](API\Runtime\Core\UObject\FName) &, const TCHAR * > FOnAssetPreImport